Answer:
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
"chlorine acts as a catalyst promoting the breakdown of ozone"
a person or thing that precipitates an event.
"the governor's speech acted as a catalyst for debate"
Explanation:
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Answer:
The genotype of the brown parent would be heterozygous.
Explanation:
As albino is a recessive trait, both the alleles should be recessive for this trait to occur.
A punnet square is a diagram which is made to illustrate the possible genotype of the offsprings.
If the brown parent will be homozygous, then a cross with albino parent will produce offsprings with brown colour having heterozygous geneotype.
For production of albinos the brown parent should be heterozygous for the trait.
Answer:
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
Explanation:
The classic example used to explain the concept of use and disuse is the elongated neck of the giraffe. According to Lamarck's theory, a given giraffe could, over a lifetime of straining to reach high branches, develop an elongated neck.Although the name "Lamarck" is now associated with a discredited view of evolution, the French biologist's notion that organisms inherit the traits acquired during their parents' lifetime had common sense on its side. ... According to Lamarck, organisms altered their behavior in response to environmental change.
